#define DALI_TOOLKIT_TEXT_TYPESETTER_H
/*
- * Copyright (c) 2021 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2022 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
enum RenderBehaviour
{
RENDER_TEXT_AND_STYLES, ///< Render both the text and its styles
- RENDER_NO_TEXT, ///< Do not render the text itself
+ RENDER_NO_TEXT, ///< Do not render the text itself but render the background styles such as outline and background.
RENDER_NO_STYLES, ///< Do not render any styles
- RENDER_MASK ///< Render an alpha mask (for color glyphs with no color animation, e.g. emoji)
+ RENDER_MASK, ///< Render an alpha mask (for color glyphs with no color animation, e.g. emoji)
+ RENDER_OVERLAY_STYLE ///< Do not render the text itself but render the style but overlay the style on the text (foreground styles such as strikethrough and underline)
};
/**
*/
enum Style
{
- STYLE_NONE, ///< No style
- STYLE_MASK, ///< Alpha mask
- STYLE_SHADOW, ///< Hard shadow
- STYLE_SOFT_SHADOW, ///< Soft shadow
- STYLE_UNDERLINE, ///< Underline
- STYLE_OUTLINE, ///< Outline
- STYLE_BACKGROUND ///< Text background
+ STYLE_NONE, ///< No style
+ STYLE_MASK, ///< Alpha mask
+ STYLE_SHADOW, ///< Hard shadow
+ STYLE_SOFT_SHADOW, ///< Soft shadow
+ STYLE_UNDERLINE, ///< Underline
+ STYLE_OUTLINE, ///< Outline
+ STYLE_BACKGROUND, ///< Text background
+ STYLE_STRIKETHROUGH ///< Strikethrough
};
public: // Constructor.
*/
PixelData Render(const Vector2& size, Toolkit::DevelText::TextDirection::Type textDirection, RenderBehaviour behaviour = RENDER_TEXT_AND_STYLES, bool ignoreHorizontalAlignment = false, Pixel::Format pixelFormat = Pixel::RGBA8888);
+ /**
+ * @brief After the Render, use the pixel information of the given cutoutBuffer to make the part where the pixel is drawn transparent.
+ *
+ * @param[in] size The renderer size.
+ * @param[in] textDirection The direction of the text.
+ * @param[in] cutoutBuffer The buffer to use pixel information to cutout.
+ * @param[in] behaviour The behaviour of how to render the text (i.e. whether to render the text only or the styles only or both).
+ * @param[in] ignoreHorizontalAlignment Whether to ignore the horizontal alignment (i.e. always render as if HORIZONTAL_ALIGN_BEGIN).
+ * @param[in] pixelFormat The format of the pixel in the image that the text is rendered as (i.e. either Pixel::BGRA8888 or Pixel::L8).
+ * @param[in] originAlpha The original alpha of text.
+ *
+ * @return A pixel data with the text rendered.
+ */
+ PixelData RenderWithCutout(const Vector2& size, Toolkit::DevelText::TextDirection::Type textDirection, Devel::PixelBuffer cutoutBuffer, RenderBehaviour behaviour = RENDER_TEXT_AND_STYLES, bool ignoreHorizontalAlignment = false, Pixel::Format pixelFormat = Pixel::RGBA8888, float originAlpha = 1.f);
+
+ /**
+ * @brief Renders the text, return as Devel::PixelBuffer.
+ *
+ * This function is used to obtain the PixelBuffer required for cutout.
+ *
+ * @param[in] size The renderer size.
+ * @param[in] textDirection The direction of the text.
+ * @param[in] cutoutBuffer The buffer to use pixel information to cutout.
+ * @param[in] behaviour The behaviour of how to render the text (i.e. whether to render the text only or the styles only or both).
+ * @param[in] ignoreHorizontalAlignment Whether to ignore the horizontal alignment (i.e. always render as if HORIZONTAL_ALIGN_BEGIN).
+ * @param[in] pixelFormat The format of the pixel in the image that the text is rendered as (i.e. either Pixel::BGRA8888 or Pixel::L8).
+ *
+ * @return A pixel data with the text rendered.
+ */
+ Devel::PixelBuffer RenderWithPixelBuffer(const Vector2& size, Toolkit::DevelText::TextDirection::Type textDirection, RenderBehaviour behaviour = RENDER_TEXT_AND_STYLES, bool ignoreHorizontalAlignment = false, Pixel::Format pixelFormat = Pixel::RGBA8888);
+
+ /**
+ * @brief Create & draw the image buffer of single background color.
+ *
+ * @param[in] bufferWidth The width of the image buffer.
+ * @param[in] bufferHeight The height of the image buffer.
+ * @param[in] backgroundColor The backgroundColor of image buffer.
+ *
+ * @return An image buffer with the text.
+ */
+ Devel::PixelBuffer CreateFullBackgroundBuffer(const uint32_t bufferWidth, const uint32_t bufferHeight, const Vector4& backgroundColor);
+
+ /**
+ * @brief Set Mask for two pixel buffer.
+ *
+ * The alpha value of bottomPixelBuffer is decreased as the alpha value of topPixelBuffer is higher.
+ *
+ * @param[in, out] topPixelBuffer The top layer buffer.
+ * @param[in, out] bottomPixelBuffer The bottom layer buffer.
+ * @param[in] bufferWidth The width of the image buffer.
+ * @param[in] bufferHeight The height of the image buffer.
+ * @param[in] originAlpha The original alpha value of the text.
+ */
+ void SetMaskForImageBuffer(Devel::PixelBuffer& __restrict__ topPixelBuffer, Devel::PixelBuffer& __restrict__ bottomPixelBuffer, const uint32_t bufferWidth, const uint32_t bufferHeight, float originAlpha);
+
private:
/**
* @brief Private constructor.
Typesetter& operator=(const Typesetter& handle);
/**
- * @brief Create the image buffer for the given range of the glyphs in the given style.
+ * @brief Create & draw the image buffer for the given range of the glyphs in the given style.
*
* Does the following operations:
* - Retrieves the data buffers from the text model.
*
* @return An image buffer with the text.
*/
- Devel::PixelBuffer CreateImageBuffer(const unsigned int bufferWidth, const unsigned int bufferHeight, Typesetter::Style style, bool ignoreHorizontalAlignment, Pixel::Format pixelFormat, int horizontalOffset, int verticalOffset, TextAbstraction::GlyphIndex fromGlyphIndex, TextAbstraction::GlyphIndex toGlyphIndex);
+ Devel::PixelBuffer CreateImageBuffer(const uint32_t bufferWidth, const uint32_t bufferHeight, const Typesetter::Style style, const bool ignoreHorizontalAlignment, const Pixel::Format pixelFormat, const int32_t horizontalOffset, const int32_t verticalOffset, const TextAbstraction::GlyphIndex fromGlyphIndex, const TextAbstraction::GlyphIndex toGlyphIndex);
/**
- * @brief Combine the two RGBA image buffers together.
+ * @brief Apply markup underline tags.
*
- * The top layer buffer will blend over the bottom layer buffer:
- * - If the pixel is not fully opaque from either buffer, it will be blended with
- * the pixel from the other buffer and copied to the combined buffer.
- * - If the pixels from both buffers are fully opaque, the pixels from the top layer
- * buffer will be copied to the combined buffer.
+ * The properties on TextLabel override the behavior of Markup.
+ * Because the markup will be the bottom layer buffer
+ * - i.e: If you set property UNDERLINE to enabled and blue.
+ * And the TEXT is "<color value='green'>Hello</color> <u>World</u> <i>Hello</i> <b>World</b>".
+ * Then the output of the whole text is underlined by blue line.
*
* @param[in] topPixelBuffer The top layer buffer.
- * @param[in] bottomPixelBuffer The bottom layer buffer.
* @param[in] bufferWidth The width of the image buffer.
* @param[in] bufferHeight The height of the image buffer.
+ * @param[in] ignoreHorizontalAlignment Whether to ignore the horizontal alignment, not ignored by default.
+ * @param[in] pixelFormat The format of the pixel in the image that the text is rendered as (i.e. either Pixel::BGRA8888 or Pixel::L8).
+ * @param[in] horizontalOffset The horizontal offset to be added to the glyph's position.
+ * @param[in] verticalOffset The vertical offset to be added to the glyph's position.
*
- * @return The combined image buffer with the text.
+ * @return The image buffer with the markup.
+ */
+ Devel::PixelBuffer ApplyUnderlineMarkupImageBuffer(Devel::PixelBuffer topPixelBuffer, const uint32_t bufferWidth, const uint32_t bufferHeight, const bool ignoreHorizontalAlignment, const Pixel::Format pixelFormat, const int32_t horizontalOffset, const int32_t verticalOffset);
+
+ /**
+ * @brief Apply markup strikethrough tags.
+ *
+ * The properties on TextLabel override the behavior of Markup.
+ * Because the markup will be the bottom layer buffer
+ * - i.e: If you set property STRIKETHROUGH to enabled and blue.
+ * And the TEXT is "<color value='green'>Hello</color> <s>World</s> <i>Hello</i> <b>World</b>".
+ * Then the whole text will have a blue line strikethrough.
+ *
+ * @param[in] topPixelBuffer The top layer buffer.
+ * @param[in] bufferWidth The width of the image buffer.
+ * @param[in] bufferHeight The height of the image buffer.
+ * @param[in] ignoreHorizontalAlignment Whether to ignore the horizontal alignment, not ignored by default.
+ * @param[in] pixelFormat The format of the pixel in the image that the text is rendered as (i.e. either Pixel::BGRA8888 or Pixel::L8).
+ * @param[in] horizontalOffset The horizontal offset to be added to the glyph's position.
+ * @param[in] verticalOffset The vertical offset to be added to the glyph's position.
*
+ * @return The image buffer with the markup.
*/
- Devel::PixelBuffer CombineImageBuffer(Devel::PixelBuffer topPixelBuffer, Devel::PixelBuffer bottomPixelBuffer, const unsigned int bufferWidth, const unsigned int bufferHeightbool);
+ Devel::PixelBuffer ApplyStrikethroughMarkupImageBuffer(Devel::PixelBuffer topPixelBuffer, const uint32_t bufferWidth, const uint32_t bufferHeight, const bool ignoreHorizontalAlignment, const Pixel::Format pixelFormat, const int32_t horizontalOffset, const int32_t verticalOffset);
protected:
/**
} // namespace Dali
-#endif // DALI_TOOLKIT_TEXT_TYPESETTER_H
+#endif // DALI_TOOLKIT_TEXT_TYPESETTER_H
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projects / platform / core / uifw / dali-toolkit.git / blobdiff